FR686538A - Coupling arrangement for alarm systems - Google Patents

Coupling arrangement for alarm systems

Info

Publication number
FR686538A
FR686538A FR686538DA FR686538A FR 686538 A FR686538 A FR 686538A FR 686538D A FR686538D A FR 686538DA FR 686538 A FR686538 A FR 686538A
Authority
FR
France
Prior art keywords
coupling arrangement
alarm systems
alarm
systems
coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR686538A publication Critical patent/FR686538A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/007—Telephonic communication systems specially adapted for combination with other electrical systems with remote control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Alarm Systems (AREA)
FR686538D 1928-12-15 1929-12-10 Coupling arrangement for alarm systems Expired FR686538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES88951D DE659819C (en) 1928-12-15 1928-12-15 Circuit arrangement for alarm systems

Publications (1)

Publication Number Publication Date
FR686538A true FR686538A (en) 1930-07-28

Family

ID=7514778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR686538D Expired FR686538A (en) 1928-12-15 1929-12-10 Coupling arrangement for alarm systems

Country Status (4)

Country Link
CH (1) CH146137A (en)
DE (1) DE659819C (en)
FR (1) FR686538A (en)
NL (1) NL30220C (en)

Also Published As

Publication number Publication date
CH146137A (en) 1931-03-31
DE659819C (en) 1938-05-11
NL30220C (en)

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